Amaya had 5 letters to mail. How many stamps did she use if she put x stamps on every letter?

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.